[deliverable/linux.git] / drivers / gpu / drm / nouveau / core / include / subdev / vm.h

/*
 * Copyright 2010 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */

#ifndef __NOUVEAU_VM_H__
#define __NOUVEAU_VM_H__

#include <core/object.h>
#include <core/subdev.h>
#include <core/device.h>
#include <core/mm.h>

struct nouveau_vm_pgt {
	struct nouveau_gpuobj *obj[2];
	u32 refcount[2];
};

struct nouveau_vm_pgd {
	struct list_head head;
	struct nouveau_gpuobj *obj;
};

struct nouveau_gpuobj;
struct nouveau_mem;

struct nouveau_vma {
	struct list_head head;
	int refcount;
	struct nouveau_vm *vm;
	struct nouveau_mm_node *node;
	u64 offset;
	u32 access;
};

struct nouveau_vm {
	struct nouveau_vmmgr *vmm;
	struct nouveau_mm mm;
	struct kref refcount;

	struct list_head pgd_list;
	atomic_t engref[NVDEV_SUBDEV_NR];

	struct nouveau_vm_pgt *pgt;
	u32 fpde;
	u32 lpde;
};

struct nouveau_vmmgr {
	struct nouveau_subdev base;

	u64 limit;
	u8  dma_bits;
	u32 pgt_bits;
	u8  spg_shift;
	u8  lpg_shift;

	int  (*create)(struct nouveau_vmmgr *, u64 offset, u64 length,
		       u64 mm_offset, struct nouveau_vm **);

	void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 pde,
			struct nouveau_gpuobj *pgt[2]);
	void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
		    struct nouveau_mem *, u32 pte, u32 cnt,
		    u64 phys, u64 delta);
	void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
		       struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *);
	void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt);
	void (*flush)(struct nouveau_vm *);
};

static inline struct nouveau_vmmgr *
nouveau_vmmgr(void *obj)
{
	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_VM];
}

#define nouveau_vmmgr_create(p,e,o,i,f,d)                                      \
	nouveau_subdev_create((p), (e), (o), 0, (i), (f), (d))
#define nouveau_vmmgr_destroy(p)                                               \
	nouveau_subdev_destroy(&(p)->base)
#define nouveau_vmmgr_init(p)                                                  \
	nouveau_subdev_init(&(p)->base)
#define nouveau_vmmgr_fini(p,s)                                                \
	nouveau_subdev_fini(&(p)->base, (s))

#define _nouveau_vmmgr_dtor _nouveau_subdev_dtor
#define _nouveau_vmmgr_init _nouveau_subdev_init
#define _nouveau_vmmgr_fini _nouveau_subdev_fini

extern struct nouveau_oclass nv04_vmmgr_oclass;
extern struct nouveau_oclass nv41_vmmgr_oclass;
extern struct nouveau_oclass nv44_vmmgr_oclass;
extern struct nouveau_oclass nv50_vmmgr_oclass;
extern struct nouveau_oclass nvc0_vmmgr_oclass;

int  nv04_vm_create(struct nouveau_vmmgr *, u64, u64, u64,
		    struct nouveau_vm **);
void nv04_vmmgr_dtor(struct nouveau_object *);

/* nouveau_vm.c */
int  nouveau_vm_create(struct nouveau_vmmgr *, u64 offset, u64 length,
		       u64 mm_offset, u32 block, struct nouveau_vm **);
int  nouveau_vm_new(struct nouveau_device *, u64 offset, u64 length,
		    u64 mm_offset, struct nouveau_vm **);
int  nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **,
		    struct nouveau_gpuobj *pgd);
int  nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift,
		    u32 access, struct nouveau_vma *);
void nouveau_vm_put(struct nouveau_vma *);
void nouveau_vm_map(struct nouveau_vma *, struct nouveau_mem *);
void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_mem *);
void nouveau_vm_unmap(struct nouveau_vma *);
void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
		       struct nouveau_mem *);
void nouveau_vm_map_sg_table(struct nouveau_vma *vma, u64 delta, u64 length,
		     struct nouveau_mem *mem);

#endif
Commit	Line	Data
a11c3198 BS	1	/*
	2	* Copyright 2010 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
	24
	25	#ifndef __NOUVEAU_VM_H__
	26	#define __NOUVEAU_VM_H__
	27
3863c9bc BS	28	#include <core/object.h>
	29	#include <core/subdev.h>
	30	#include <core/device.h>
02a841d4	31	#include <core/mm.h>
a11c3198 BS	32
a11c3198 BS	33	struct nouveau_vm_pgt {
3ee01281 BS	34	struct nouveau_gpuobj *obj[2];
3ee01281 BS	35	u32 refcount[2];
a11c3198 BS	36	};
	37
	38	struct nouveau_vm_pgd {
	39	struct list_head head;
	40	struct nouveau_gpuobj *obj;
	41	};
3863c9bc BS	42
	43	struct nouveau_gpuobj;
	44	struct nouveau_mem;
a11c3198 BS	45
a11c3198 BS	46	struct nouveau_vma {
fd2871af	47	struct list_head head;
2fd3db6f	48	int refcount;
a11c3198 BS	49	struct nouveau_vm *vm;
	50	struct nouveau_mm_node *node;
	51	u64 offset;
	52	u32 access;
	53	};
	54
	55	struct nouveau_vm {
3863c9bc	56	struct nouveau_vmmgr *vmm;
987eec10	57	struct nouveau_mm mm;
e0bacd2f	58	struct kref refcount;
a11c3198 BS	59
a11c3198 BS	60	struct list_head pgd_list;
c3032adb	61	atomic_t engref[NVDEV_SUBDEV_NR];
a11c3198 BS	62
	63	struct nouveau_vm_pgt *pgt;
	64	u32 fpde;
	65	u32 lpde;
3863c9bc BS	66	};
3863c9bc BS	67
3863c9bc BS	68	struct nouveau_vmmgr {
3863c9bc BS	69	struct nouveau_subdev base;
a11c3198	70
ebb945a9	71	u64 limit;
dc73b45a	72	u8 dma_bits;
a11c3198 BS	73	u32 pgt_bits;
	74	u8 spg_shift;
	75	u8 lpg_shift;
	76
3863c9bc BS	77	int (create)(struct nouveau_vmmgr , u64 offset, u64 length,
	78	u64 mm_offset, struct nouveau_vm **);
	79
3ee01281 BS	80	void (map_pgt)(struct nouveau_gpuobj pgd, u32 pde,
3ee01281 BS	81	struct nouveau_gpuobj *pgt[2]);
a11c3198	82	void (map)(struct nouveau_vma , struct nouveau_gpuobj *,
8f7286f8 BS	83	struct nouveau_mem *, u32 pte, u32 cnt,
8f7286f8 BS	84	u64 phys, u64 delta);
a11c3198	85	void (map_sg)(struct nouveau_vma , struct nouveau_gpuobj *,
26c0c9e3	86	struct nouveau_mem , u32 pte, u32 cnt, dma_addr_t );
a11c3198 BS	87	void (unmap)(struct nouveau_gpuobj pgt, u32 pte, u32 cnt);
	88	void (flush)(struct nouveau_vm );
	89	};
	90
3863c9bc BS	91	static inline struct nouveau_vmmgr *
	92	nouveau_vmmgr(void *obj)
	93	{
	94	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_VM];
	95	}
	96
	97	#define nouveau_vmmgr_create(p,e,o,i,f,d) \
	98	nouveau_subdev_create((p), (e), (o), 0, (i), (f), (d))
	99	#define nouveau_vmmgr_destroy(p) \
	100	nouveau_subdev_destroy(&(p)->base)
	101	#define nouveau_vmmgr_init(p) \
	102	nouveau_subdev_init(&(p)->base)
	103	#define nouveau_vmmgr_fini(p,s) \
	104	nouveau_subdev_fini(&(p)->base, (s))
	105
	106	#define _nouveau_vmmgr_dtor _nouveau_subdev_dtor
	107	#define _nouveau_vmmgr_init _nouveau_subdev_init
	108	#define _nouveau_vmmgr_fini _nouveau_subdev_fini
	109
	110	extern struct nouveau_oclass nv04_vmmgr_oclass;
	111	extern struct nouveau_oclass nv41_vmmgr_oclass;
	112	extern struct nouveau_oclass nv44_vmmgr_oclass;
	113	extern struct nouveau_oclass nv50_vmmgr_oclass;
	114	extern struct nouveau_oclass nvc0_vmmgr_oclass;
	115
	116	int nv04_vm_create(struct nouveau_vmmgr *, u64, u64, u64,
a11c3198	117	struct nouveau_vm **);
3863c9bc BS	118	void nv04_vmmgr_dtor(struct nouveau_object *);
3863c9bc BS	119
3863c9bc BS	120	/* nouveau_vm.c */
	121	int nouveau_vm_create(struct nouveau_vmmgr *, u64 offset, u64 length,
	122	u64 mm_offset, u32 block, struct nouveau_vm **);
	123	int nouveau_vm_new(struct nouveau_device *, u64 offset, u64 length,
	124	u64 mm_offset, struct nouveau_vm **);
a11c3198 BS	125	int nouveau_vm_ref(struct nouveau_vm , struct nouveau_vm *,
	126	struct nouveau_gpuobj *pgd);
	127	int nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift,
	128	u32 access, struct nouveau_vma *);
	129	void nouveau_vm_put(struct nouveau_vma *);
d5f42394 BS	130	void nouveau_vm_map(struct nouveau_vma , struct nouveau_mem );
d5f42394 BS	131	void nouveau_vm_map_at(struct nouveau_vma , u64 offset, struct nouveau_mem );
a11c3198 BS	132	void nouveau_vm_unmap(struct nouveau_vma *);
	133	void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
	134	void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
f7b24c42	135	struct nouveau_mem *);
22b33e8e	136	void nouveau_vm_map_sg_table(struct nouveau_vma *vma, u64 delta, u64 length,
3863c9bc	137	struct nouveau_mem *mem);
4c74eb7f	138
a11c3198	139	#endif